IAT 2026 Answer Key Released at iiseradmission.in; Download PDF and Calculate Your Score

The IISER Provisional Answer Key 2026 has been released by the exam officials today, June 7, 2026. Candidates who appeared for exam, can now check and download the IAT 2026 subject-wise answer key PDF by visiting the official website, iiseradmission.in.

The IAT 2026 answer key allows candidates to verify their responses, estimate their probable scores, and assess their chances of securing admission to the participating IISER campuses across the country.

Candidates should note that the exam authorities have initially released the IAT 2026 provisional answer key. They can review the official responses provided for the questions asked in the examination. If candidates are not satisfied with any answer mentioned in the provisional answer key, they can raise objections within the specified period by submitting valid supporting documents during the IAT 2026 Answer Key Objection Window. Based on the correction made in the provisional answer key, IAT 2026 final answer key will be compiled.

Read this SciAstra blog to get complete insights into the IAT 2026 Provisional Answer Key, including the steps to download it, answer key objection window dates, student response sheet details, and other important information.

How to Download IISER 2026 Provisional Answer Key

In order to download the IAT 2026 provisional answer key, candidates can follow the steps below:

1. At first, candidates need to visit the official IISER admission portal- iiseradmission.in

2. Click on the "IAT 2026 Provisional Answer Key" link available on the homepage-

3. Download the IISER 2026 answer key PDF.

4. Compare the answers with your responses and estimate your score.

The answer key contains the official responses to all questions asked in the examination and serves as the basis for score calculation before the release of results

IAT 2026 Provisional Answer Key

Candidates can now check out the IAT 2026 Provisional Answer Key in Hindi and English Medium from here:

How to Calculate IAT 2026 Score

Candidates can estimate their IAT 2026 score using the official marking scheme: +4 marks for each correct answer, -1 mark for each incorrect answer, and 0 marks for unattempted questions.

Score Formula:

IAT Score = (Number of Correct Answers × 4) – (Number of Incorrect Answers × 1)

The IAT 2026 question paper consists of 60 multiple-choice questions from Physics, Chemistry, Mathematics, and Biology, carrying a maximum of 240 marks.

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When will the IAT 2026 Student Response Sheet be Released?

For the test takers to tally the IAT 2026 score, they need to have their student response sheet with them. The exam officials release the IISER 2026 Student Response Sheet so that candidates can check out the options they have marked in the examination.

IAT 2026 Response sheet will be uploaded on the official website on June 9, 2026.

With the release of the IAT 2026 Provisional Answer Key, candidates can now assess their performance and estimate their likely scores before the official result announcement. Aspirants should carefully verify every response, download their response sheet, and utilise the objection facility if they identify any discrepancies. IAT 2026 Answer Key Objection Window will open on Jun 9, 2026, and the last date to raise objections will be June 13, 2026.

IAT 2026 Important Dates

Candidates can check out the important upcoming dates for important events after the conduct of the examination from here: